Coils
Check for a short-circuit in the wires to the coil switches
•
Switch both ignition switches to ON (ie OPEN
circuit) alternatively disconnect wires from
switches.
•
Master ON and ECU ON (NOTE ENGINE IS LIVE)
•
Using a multi-meter (set to DC volts) Measure
voltage between “ground” and “control signal
wire” – see right.
•
If you have 0v , there is a short-circuit between
ground and control signal wire in the wiring
loom. Check/correct/replace wiring.
•
If you have 9v go to
ECU troubleshooting
White/
White
Control
signal
coil 1
White/
Red
Control
signal
coil 2
White/
Blue
GROUND
Ign.Switch
Coil 1
Ign.Switch
Coil 2
